Security Advisory

CVE-2026-54221

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-06-18 12:56:19

Last updated 2026-06-18 13:30:11

Assigner CERT-PL

CVSS score 5.1

State PUBLISHED

Description

UBB.threads is vulnerable to Reflected XSS. The application improperly handles user input in certain requests, enabling attackers to execute arbitrary JavaScript in the context of a victim's browser by tricking them into clicking a crafted link. Because vendor contact attempts were unsuccessful, the vulnerability has only been confirmed in version 7.7.5 but may also affect other versions.

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